Reaper thrasher



Nov. 12, 1929. g. s. HARRIS E-T AL 1,735,755

REAPER THRASHER Filed May 9, 1927 Al llllll u A A A A A ll I '"Hmll I In 'milllllh ""mll IW Patented Nov. 12, 19 29 j rm sitar s Bo'R'roN s. HARRIS Aim Howman Ji:. sonnsroi or ao'ieorvjro onfmnroi fdhithnij z:

ASSIGNQR 'ro MASSEY-HARRZS ooivrraivr, LIMITED, or'roRoN'ro, CANADA REAPER marshes This invention relates to implements adapted to out grain and thrash it in the field, which employ cutting means; conveying means,- and thrashing means driven usually by an internal combustion engine carried by the machine. The cutter bar is mounted and reciprocated on the header platform in the usual manner. Our object is to provide simple means for effecting the vertical adjustment of the header platform and which will permit the automatic lifting of the header platform in the event of the cutter bar guards encountering obstacles on the ground tending to lift the platform.

We attain our object by supporting the header platform from a rockable bar extend- .ing behind the platform. One end of this bar is journalled by means of a ball and socket universal joint on the main frame of the reaper-thrasher and the other end of the bar is supported by a ground wheel which is journalled thereon; To the bar-are secured forwardly extending members for supporting the header-platform and an arm on which a sleeve is pivotally carried. A

lustrated in the accompanying drawings in which V Fig. 1 is a plan view of part of a reaperthrasher showing my improvements there- Fig. 2 a cross section, on an enlarged scale, of the header-platform showing the preferred form of adjusting mechanism therefor; and

Fig. 3 a view similar to Fig. 2 on a reduced 1 scale showing a modified form of adjusting lnechanism. 1 :51; In the drawmgs like numerals of reference indicate corresponding parts 1n the different 7 figures.

1 is part of the main frame of areaper h hcaiioii'fi ea my 9, 1927;; Serial No 189,898.

thrasher which is supported by the fore-cairiaz e 2 the ground wheels 3. J On thi fram are carried parts of the ehihewhich are'i'i'ot not described as they 'i-e'rhi parser the present invent-i611; Extending laterally from the fer-ward part of the frame 1 is header platform 4 which carrise the cutterhar guards 5' aiid the conve or ex hich of ordinary type The header platform ls'tiarfid in thatch revving mama; A s'u pqrti g hai 7 is nect'eftl by ballfand socket i'iiiversal joiht; 8 with the frame. Preferably th'e bfall member is formed on or-is securedfto the transverse shaft on which thefwheels'fi are journalled and the socket member is se'ufed to the bar 7, which extfends laterally behind the header" platform. on the outer eiid of the bar is journalleda greuha wheel Members 10; secured y means or clamps 11' tothe her 7 extend forwardly and are he: cured to the header platform to support the" latte-i hem-theta." Frem the descriptionit isobvious that the bar. 7 is free to estimate or rock on it's eiid conn'ec'tions'and that jthej header platform will swihg on the" axis or the bahin a vertical plane; 4 socketjoint 8 is also adapted to" permit the header platform to be swunginwardly iii a I horizontal plane tow'ards-the r'riachine. The purposeof this is to reduce the width orthe; machiiie to enable it it ass through standard sized "A-tlia-Tg'onal brace ia-hoids the header platens in working position; The engagerlieiit-betwerithe t me and the- The ball aha" bar is such that thelatter is free to roclr di its i p To. adjust the heaher' latform relative he the gre ihawe'seciiie a'fi aimis to the bar-7 (see Fi 2) The apperehd oi this arm is forked between the for'k e'd ends is pivotally mounted a sleeve 14c. Between a pair at lugs i5pcari-ied o'ii themaiiif-rai e 1 pivot ally carries a nut 16; A screw 17, journalled in the sleeve and provided with fiaeaeeue 18 and a th'riist bearing 19 for engagement with the and or the sleev is threadedinto nut; The screwis' provided with a speeches so whiehis "connected by a chain with a sprocket 21 of a gear box 22; The gear;

r direction the header platform will be lowered box is of ordinary construot-ion'and is provided with a drive shaft 23 which may be actuated inanyconvenient manner from the power plant of the machine. The gear box includes reverse gear mechanism operable through the medium of a handle lever 24 which inFig. 2 is shown in neutral position I so thatfthe screw may be manually operated by a hand grip secured to the sprocket 20.

rection the le -3. In a harvester, the combination It is obvious that by rotating the screw in one and by rotating the screw in the opposite diplatform will be raised relative to the ground.

'A modified arrangement of the adjusting means is shown in Fig. 3. The arm 13 is secured to the frame land the lugs 15 are carried on a forwardly extending header platform supporting member 10. The collar 18 and thrust bearing 19 'engage the outer end of the sleeve 14. a

In either the preferred or the modified form of adjusting device the header platform is free to swing upwardly if the cutter bar guards 5 strike an obstacle on the ground. When this. occurs the sleeve 14 in Fig. 2 moves 7 away fromthe collar 18 on the screw and in Fig.3 the collar 18 moves away from-the sleeve 14. V 1

.What we claim is: o-

a of a main frame; a header platform extending laterally therefrom; a rockable header platform supporting bar having one end suitably carriedby the frame and extending behind the header platform; a ground wheel journalledl on the other endof the bar; forwardly extending header platform supporting mem' bers secured to the rockable bar; a pivotally mountednut part; a pivotall y mounted sleeve part; a supporting screw journalled in the sle'evepart and threaded in the nut part; a

7 main frame; a header platform extending collar on the supporting screw engaging the sleeve part, one of the said parts being movable with the header platform and the other of the said parts being connected with the main frame whereby the header platform maybe adjusted by meansof the supporting screw relative to the ground and may be lifted v independently of the. screw.

- 2; In a harvester, the combination of a laterallytherefrom'; a rockable header platform supporting bar having one end suitably carried by the frame and extending behind the header platform; .a ground wheel journalled on the other end of the bar; forwardly extending header platform supporting members secured to the rockable bar; a nut pivotallyca rried on' the main frame; an arm carried by the bar; a sleeve pivotally mounted on the arm; a supporting screw journalled in the sleeve and threaded in the nut; a collar on the supporting screw engaging the sleeve to support the'headerplatform and meansfor rotating the supporting screw to adjust the header platform relativeto the ground.

3. In a harvester the combination of a main frame having a transverse shaft; ground vwheels carried on the said shaft; a header 7 BURTON SHARRIS.

OHNS'ION. 

